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Subsequent Event	12 Months Ended
Subsequent Event	Oct. 31, 2012
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On December 5, 2012, the Board of Directors amended the 2012 Share Repurchase Program, discussed in Note. 7 Stockholders' Equity. The amendment increased the total authorized repurchase amount to $300.0 million from $150.0 million of the Company's outstanding common stock and changed the expiration date of the Program to indefinite from December 31, 2012. With this amendment, the remaining amount available for the repurchase of the Company's common stock under the Program is $228.9 million.